/* ===========================================================
 * bootstrap-modal.js v2.1
 * ===========================================================
 * Copyright 2012 Jordan Schroter
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ========================================================== */


!function ($) {

    "use strict"; // jshint ;_;

    /* MODAL CLASS DEFINITION
	* ====================== */

    var Modal = function (element, options) {
        this.init(element, options);
    };

    Modal.prototype = {

        constructor: Modal,

        init: function (element, options) {
            this.options = options;

            this.$element = $(element)
				.delegate('[data-dismiss="modal"]', 'click.dismiss.modal', $.proxy(this.hide, this));

            this.options.remote && this.$element.find('.modal-body').load(this.options.remote);

            var manager = typeof this.options.manager === 'function' ?
				this.options.manager.call(this) : this.options.manager;

            manager = manager.appendModal ?
                manager : $(manager).modalmanager().data('modalmanager');

            manager.appendModal(this);
        },

        toggle: function () {
            return this[!this.isShown ? 'show' : 'hide']();
        },

        show: function () {
            var e = $.Event('show');

            if (this.isShown) return;

            this.$element.trigger(e);

            if (e.isDefaultPrevented()) return;

            this.escape();

            this.tab();

            this.options.loading && this.loading();
        },

        hide: function (e) {
            e && e.preventDefault();

            e = $.Event('hide');

            this.$element.trigger(e);

            if (!this.isShown || e.isDefaultPrevented()) return (this.isShown = false);

            this.isShown = false;

            this.escape();

            this.tab();

            this.isLoading && this.loading();

            $(document).off('focusin.modal');

            this.$element
				.removeClass('in')
				.removeClass('animated')
				.removeClass(this.options.attentionAnimation)
				.removeClass('modal-overflow')
				.attr('aria-hidden', true);

            $.support.transition && this.$element.hasClass('fade') ?
				this.hideWithTransition() :
				this.hideModal();
        },

        layout: function () {
            var prop = this.options.height ? 'height' : 'max-height',
				value = this.options.height || this.options.maxHeight;

            if (this.options.width) {
                this.$element.css('width', this.options.width);

                var that = this;
                this.$element.css('margin-left', function () {
                    if (/%/ig.test(that.options.width)) {
                        return -(parseInt(that.options.width) / 2) + '%';
                    } else {
                        return -($(this).width() / 2) + 'px';
                    }
                });
            } else {
                this.$element.css('width', '');
                this.$element.css('margin-left', '');
            }

            this.$element.find('.modal-body')
				.css('overflow', '')
				.css(prop, '');

            if (value) {
                this.$element.find('.modal-body')
					.css('overflow', 'auto')
					.css(prop, value);
            }

            var modalOverflow = $(window).height() - 10 < this.$element.height();

            if (modalOverflow || this.options.modalOverflow) {
                this.$element
					.css('margin-top', 0)
					.addClass('modal-overflow');
            } else {
                this.$element
					.css('margin-top', 0 - this.$element.height() / 2)
					.removeClass('modal-overflow');
            }
        },

        tab: function () {
            var that = this;

            if (this.isShown && this.options.consumeTab) {
                this.$element.on('keydown.tabindex.modal', '[data-tabindex]', function (e) {
                    if (e.keyCode && e.keyCode == 9) {
                        var $next = $(this),
							$rollover = $(this);

                        that.$element.find('[data-tabindex]:enabled:not([readonly])').each(function (e) {
                            if (!e.shiftKey) {
                                $next = $next.data('tabindex') < $(this).data('tabindex') ?
									$next = $(this) :
									$rollover = $(this);
                            } else {
                                $next = $next.data('tabindex') > $(this).data('tabindex') ?
									$next = $(this) :
									$rollover = $(this);
                            }
                        });

                        $next[0] !== $(this)[0] ?
							$next.focus() : $rollover.focus();

                        e.preventDefault();
                    }
                });
            } else if (!this.isShown) {
                this.$element.off('keydown.tabindex.modal');
            }
        },

        escape: function () {
            var that = this;
            if (this.isShown && this.options.keyboard) {
                if (!this.$element.attr('tabindex')) this.$element.attr('tabindex', -1);

                this.$element.on('keyup.dismiss.modal', function (e) {
                    e.which == 27 && that.hide();
                });
            } else if (!this.isShown) {
                this.$element.off('keyup.dismiss.modal')
            }
        },

        hideWithTransition: function () {
            var that = this
				, timeout = setTimeout(function () {
				    that.$element.off($.support.transition.end);
				    that.hideModal();
				}, 500);

            this.$element.one($.support.transition.end, function () {
                clearTimeout(timeout);
                that.hideModal();
            });
        },

        hideModal: function () {
            var prop = this.options.height ? 'height' : 'max-height';
            var value = this.options.height || this.options.maxHeight;

            if (value) {
                this.$element.find('.modal-body')
					.css('overflow', '')
					.css(prop, '');
            }

            this.$element
				.hide()
				.trigger('hidden');
        },

        removeLoading: function () {
            this.$loading.remove();
            this.$loading = null;
            this.isLoading = false;
        },

        loading: function (callback) {
            callback = callback || function () { };

            var animate = this.$element.hasClass('fade') ? 'fade' : '';

            if (!this.isLoading) {
                var doAnimate = $.support.transition && animate;

                this.$loading = $('<div class="loading-mask ' + animate + '">')
					.append(this.options.spinner)
					.appendTo(this.$element);

                if (doAnimate) this.$loading[0].offsetWidth; // force reflow

                this.$loading.addClass('in');

                this.isLoading = true;

                doAnimate ?
					this.$loading.one($.support.transition.end, callback) :
					callback();

            } else if (this.isLoading && this.$loading) {
                this.$loading.removeClass('in');

                var that = this;
                $.support.transition && this.$element.hasClass('fade') ?
					this.$loading.one($.support.transition.end, function () { that.removeLoading() }) :
					that.removeLoading();

            } else if (callback) {
                callback(this.isLoading);
            }
        },

        focus: function () {
            var $focusElem = this.$element.find(this.options.focusOn);

            $focusElem = $focusElem.length ? $focusElem : this.$element;

            $focusElem.focus();
        },

        attention: function () {
            // NOTE: transitionEnd with keyframes causes odd behaviour

            if (this.options.attentionAnimation) {
                this.$element
					.removeClass('animated')
					.removeClass(this.options.attentionAnimation);

                var that = this;

                setTimeout(function () {
                    that.$element
						.addClass('animated')
						.addClass(that.options.attentionAnimation);
                }, 0);
            }


            this.focus();
        },


        destroy: function () {
            var e = $.Event('destroy');
            this.$element.trigger(e);
            if (e.isDefaultPrevented()) return;

            this.teardown();
        },

        teardown: function () {
            if (!this.$parent.length) {
                this.$element.remove();
                this.$element = null;
                return;
            }

            if (this.$parent !== this.$element.parent()) {
                this.$element.appendTo(this.$parent);
            }

            this.$element.off('.modal');
            this.$element.removeData('modal');
            this.$element
				.removeClass('in')
				.attr('aria-hidden', true);
        }
    };


    /* MODAL PLUGIN DEFINITION
	* ======================= */

    $.fn.modal = function (option, args) {
        return this.each(function () {
            var $this = $(this),
				data = $this.data('modal'),
				options = $.extend({}, $.fn.modal.defaults, $this.data(), typeof option == 'object' && option);

            if (!data) $this.data('modal', (data = new Modal(this, options)));
            if (typeof option == 'string') data[option].apply(data, [].concat(args));
            else if (options.show) data.show()
        })
    };

    $.fn.modal.defaults = {
        keyboard: true,
        backdrop: true,
        loading: false,
        show: true,
        width: null,
        height: null,
        maxHeight: null,
        modalOverflow: false,
        consumeTab: true,
        focusOn: null,
        replace: false,
        resize: false,
        attentionAnimation: 'shake',
        manager: 'body',
        spinner: '<div class="loading-spinner" style="width: 200px; margin-left: -100px;"><div class="progress progress-striped active"><div class="bar" style="width: 100%;"></div></div></div>'
    };

    $.fn.modal.Constructor = Modal;


    /* MODAL DATA-API
	* ============== */

    $(function () {
        $(document).off('click.modal').on('click.modal.data-api', '[data-toggle="modal"]', function (e) {
            var $this = $(this),
				href = $this.attr('href'),
				$target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))), //strip for ie7
				option = $target.data('modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data());

            e.preventDefault();
            $target
				.modal(option)
				.one('hide', function () {
				    $this.focus();
				})
        });
    });

}(window.jQuery);